Set your base frequency
Choose a carrier tone between 100–500 Hz as the foundation for both channels.
Binaural Beats Generator
Dial in a base frequency and a beat frequency to generate two tones panned hard left and right — your brain perceives the difference as a rhythmic binaural beat.
⚠️ Stereo headphones are required. Each ear must hear a different tone for the binaural effect to work — speakers will not produce it.
The carrier tone shared by both ears (100–500 Hz).
The perceived difference between the left and right tones (1–30 Hz).
How it works
Choose a beat frequency
Pick a difference of 1–30 Hz; slower beats favor deep relaxation, faster ones favor focus.
Put on headphones and press play
Two oscillators, panned hard left and right, play simultaneously so your brain perceives the beat.
FAQ
Why do I need headphones?
Binaural beats rely on each ear hearing a slightly different frequency. Speakers let both tones mix in the air before reaching your ears, so the effect only works with stereo headphones.
Is any audio recorded or uploaded?
No. Both tones are generated live in your browser with the Web Audio API's oscillator nodes. Nothing is recorded or sent anywhere.
What beat frequency should I use?
Lower beat frequencies around 1–4 Hz are often used for deep relaxation, mid-range 8–12 Hz for calm focus, and higher ranges of 15–30 Hz for alertness. Experiment to find what feels right.